Overview
The ZF 4657.185.051 ACCESSORIES for WG190/WG210 is a critical OEM genuine assembly component designed to secure and align internal transmission elements within the WG 190 and WG 210 series. This part functions as a mounting bracket and positioning guide, ensuring that the main shaft and gear clusters remain properly seated under high-torque conditions. As an OEM genuine part, the SKU 4657.185.051 guarantees factory tolerances and material integrity, reducing the risk of premature wear in the drivetrain. It sits directly between the HOUS.FRONT SECT and the HOUSING REAR PART, forming a stable interface that prevents axial movement during operation.
Symptoms of Failure
When the 4657.185.051 accessory begins to degrade, operators may notice intermittent gear engagement hesitation during shifting, often mistaken for clutch issues. Another common symptom is low-pressure oil seepage around the housing joint, which can lead to gradual fluid loss and reduced lubrication efficiency. A third failure indicator is unusual metallic rattling from the transmission bell housing, particularly during deceleration, signaling that the accessory has loosened. Finally, erratic shift timing under load may occur, as the misaligned component disrupts hydraulic valve sequencing.
Technical Specifications
| Specification | Value |
|---|---|
| OEM Part Number | 4657.185.051 |
| Material | High-grade cast steel with anti-corrosion coating |
| Weight | 1.85 kg (4.08 lbs) |
| Length | 215 mm |
| Width | 95 mm |
| Height | 45 mm |
| Mounting Hole Diameter | 12.5 mm |
| Operating Temperature Range | -40°C to +120°C |
| OEM Reference | ZF 4657.185.051 |
Compatibility
This genuine ZF accessory is engineered for the WG 190 Series and WG 210 Series transmissions, including models such as WG180, WG190, WG200, WG210, and WG220. It is also compatible with select variants of the WG 150 and WG 160 series when used in conjunction with the TRANSMISSION HOUSING and the HOUSING REAR SECTION. Always verify your transmission serial number before ordering to ensure proper fitment.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101082 | TRANSMISSION HOUSING | Main structural casing for gear assembly |
| 4657201166 | HOUS.FRONT SECT | Front section housing for input shaft support |
| 4657201170 | HOUSING REAR PART | Rear housing component for output shaft alignment |
| 4657298102 | HOUSING REAR SECTION | Complete rear section for final drive support |
| 0631306816 | CYLINDRICAL PIN | Alignment pin for precise housing positioning |
| 0636100801 | CAP SCREW | Fastener for securing housing sections |
| 4656301148 | FIXING PLATE | Retention plate for accessory mounting |
| 4657301032 | SCREEN SHEET | Filter screen for hydraulic fluid debris |
| 4657301033 | SCREEN SHEET | Secondary filter screen for oil return line |
| 0636100803 | CAP SCREW | High-tensile bolt for housing assembly |
Frequently Asked Questions
Q: Can the 4657.185.051 be used in a WG200 transmission without modifications?
A: Yes, this OEM genuine part is directly compatible with WG200 models, provided the transmission housing and rear section are also OEM ZF components. No machining or adapters are required.
Q: What is the typical lifespan of this accessory under normal operating conditions?
A: With proper maintenance and clean hydraulic fluid, the 4657.185.051 typically lasts 500,000 to 700,000 kilometers before showing signs of wear. Regular inspection of the mounting bolts is recommended.
Q: Does this part come with the necessary fasteners for installation?
A: The 4657.185.051 is sold as a standalone accessory. For a complete installation, we recommend ordering the CAP SCREW and CYLINDRICAL PIN separately to ensure proper torque and alignment.
📞 Need this part? Contact our ZF specialists:
Email: info@partszf.com |
Phone: +86 158 2286 3467 |
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